baber/WOPTO huggingface dataset:
Patent GB-1516743-A (GB)
Title: Rail vehicles
IPC: B61F5/30
Filed: 1975-10-30
Abstract: 1516743 Axle-bearing guiding arrangements FRANZ PLASSER BAHNBAUMASCHINENINDUSTRIE GmbH 30 Oct 1975 [6 Dec 1974] 44889/75 Heading B7L A suspension system of a rail vehicle comprises two helical springs 7 and a hydraulic damper 10 which are disposed to act between an axle bearing 5 and a chassis 1 (or bogie frame), the springs 6 being located fore and aft of the bearing 5 between an axle bearing easing 6 and a yoke 8 which is pivotally supported by shackle suspension 9 on frame parts 15 depending from the chassis 1. Shackles 18 of the suspension 9 are mounted on the yoke 8 and parts 15 by bolts 16 which act as torsion bars. Vertical guides 11 within the springs 7 comprise mushroom-shaped projections 12 from the casing 6 received in guide parts 13 mounted on the yoke 8 to provide telescopic guidance while permitting some relative tilting of the parts 12, 13. As shown, shoe brakes 14 are provided and the damper 10 is pivotally mounted on a housing of the bearing 5. Where disc brakes are employed, the damper is pivotally mounted on a carrier plate (22) for the prake pads, Fig. 6 (not shown). The running gear is particularly for use in twin-axle or multiaxle permanent way machines for laying, removing or maintaining the permanent way, and is intended to provide spring suspension and damping in vertical, longitudinal and transverse directions.
Patent GB-1217729-A (GB)
Title: Method of and plant for continuously providing a metal tube with a heat and sound insulating sheath
IPC: B29C48/09
Filed: 1968-09-24
Abstract: 1,217,729. Coating cores by extrusion. BENTELER-WERKE A.G. 24 Sept., 1968 [29 Sept., 1967], No. 45371/68. Heading B5A. [Also in Division F2] A method of continuously providing a metal  tube with a coating of foamed plastics material comprises passing the tube, while at or below ambient temperature, through an extruder cross-head 4, where at the point of application of the plastics any air and/or evolved gases are withdrawn, smoothing the surface of the coating and cooling the coated tube. Preferably the cooling is in two stages, which as shown, is by passage through a tank 11, e.g. containing water at 50-60 C, and through a second tank 12, e.g. containing water at 10-20 C. The external diameter of the coated tube is monitored by devices 10, 13, and signals generated thereby control the rate of working of tube feed device 3. The air or gases are withdrawn from cross-head 4 by means of a vacuum pump 16 via line 15. The tube may be taken from a reel 2 and straightened by feed means 3, with subsequent cutting of the coated tube, or short lengths of interconnected tubing may be fed to the cross-head. The cross-head, Fig. 3, comprises an axially adjustable mandrel 19 which controls the rate of flow of the plastics material. Ring 26 smoothes the coating and is preferably made of PTFE, and electrical resistance heaters 27 are provided. The foaming agent, e.g. azodicarbonamide, is present in an amount of 0À2-1À5 parts by weight and to the plastics and agent may be added a lightweight thermally insulating material such as asbestos or powdered diatomite, e.g. in an amount of 6-15 parts by weight.
Patent GB-1012840-A (GB)
Title: 2,3 - dichloro - pyrazine
Filed: 1964-11-06
Abstract: 2,3-Dichloropyrazine is prepared by reacting phosgene with an aqueous solution of piperazine hexahydrate in the presence of an acid acceptor and a chlorine containing C1- 4 aliphatic hydrocarbon at from - 10 DEG  to +20 DEG  C. to yield N,N1-bis-chlorocarbonyl-piperazine which is then treated with clorine at from 150 DEG  to 170 DEG  C. in the presence of an aluminium chloride, ferric chloride or antimony chloride catalyst. The second step is preferably carried out under ultra-violet or visible irradiation.  Examples are given.  It is stated that 2,3-dichloropyrazine may be reacted with ammonia to give 2-amino-3-chloro-pyrazine, which compound, on reaction with an alkali metal methylate, gives 2-amino-3-methoxy-pyrazine, from which 3 - methoxy - 2 - sulphonilamido - pyrazine may be obtained by sulphonation.
Patent GB-1388940-A (GB)
Title: Narrow elastic fabric
IPC: D03D15/56
Filed: 1972-10-03
Abstract: 1388940 Elastic fabrics JOHNSON & JOHNSON 3 Oct 1972 [4 Oct 1971] 45548/72 Heading D1K A narrow elastic fabric suitable as a waistband for trousers comprises monofilamentary weft yarns 11, and elastic warp yarns 12, which are leno woven under tension with respective non-elastic warp threads 13 so that the elastic yarns are all on one surface, and the non- elastic yarns on the other surface, which gives the fabric a curved configuration in the weftwise direction. There may be additional elastic warp threads woven in a plain weave between cotton (e.g. 36/2) rayon, or texturised stretch yarns, such as texturised nylon binder yarns. The elastic warp threads may be a spandex core wrapped with nylon or polyester and top wrapped with cotton. The weft monofilaments may be nylon of denier from 400 to 2000, polyester or polyolefin. The non-elastic warp yarns may be nylon or cotton, spun or multifilament. The edges of the fabric may be woven in a twill weave with texturised nylon or polyester warps to produce soft edges to the fabric. In an example, the edges of the fabric consist of 24 ends of 100 denier stretch nylon woven in twill. Then an elastic yarn having a spandex core of 1680 denier which has been wrapped with 100 denier multifilament nylon and covered with three ends of 20's cotton yarns is leno woven with two ends of 200 denier nylon multifilament yarns. Then ends of 100 denier nylon and spandex yarns as above are woven in 1/1 plain weave, of which there may be a number of repeats. After this six ends of 100 denier stretch nylon yarns are woven in a 2/2 plain weave. The weft yarns are 1100 denier nylon 28 picks/inch during weaving so that the finished fabric has about 38 to 39 picks/inch.
Patent GB-1483688-A (GB)
Title: Connector for optical fibres
IPC: G02B6/38
Filed: 1975-10-31
Abstract: 1483688 Optic fibre connectors COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 31 Oct 1975 [13 Nov 1974] 45563/75 Heading G2J The fibres, 1, 2 are held in abutting relationship by three parallel rollers 5, 6 urged together by a flexible sleeve 8. Cones 11, 12 are moved together to release the grip on the fibres which are threaded through axial bores therein. The pin 34 engages a peripheral groove to move cone 12 between the engaged and disengaged positions.
Patent GB-1085392-A (GB)
Title: Improvements in hydraulic props
Inventor: TAYLOR LAWRENCE WILLIAM
IPC: E21D15/55
Filed: 1963-11-20
Abstract: 1,085,392. Hydraulic pit props. W. E. & F. DOBSON Ltd. Nov. 17, 1964 [Nov. 20, 1963], No. 45731/63. Heading EIE. In a hydraulic pit wherein the ram 2 incorporates a pump, inlet and outlet valves 9, 10 therefor and a release valve 4 together with operating or control means 5, 6, 8 for said pump and release valve, the reservoir in the ram is thermetically sealed whereby a partial vacuum is maintained when the prop is extended to facilitate collapse of the prop on operation of the release valve. An air control valve 11 may be fitted as shown.
Patent GB-1094029-A (GB)
Title: Apparatus and process for continuously reacting two or more component materials, particularly a titaniferous ore and sulphuric acid
IPC: B01J16/00
Filed: 1966-10-14
Abstract: 1,094,029. Reactor. NATIONAL LEAD CO. Oct. 14, 1966 [Oct. 22, 1965], No. 46152/66. Headings B1F and B1X. Apparatus for continuously reacting two or more component materials, e.g. titaniferous ore with sulphuric acid, comprises a casing 10 having an inlet 13, a heat and acid resistant resilient endless conveyor belt 14 which is formed into a temporary reaction pocket on its upper reach by lead or lead alloy guide plates 20, and discharge shute 29. Chamber 10 is made of metal. In the embodiment of Figs. 4 and 5 (not shown), guide plates 20 are replaced by metal or polytetrafluoroethylene rollers (31). The band 14 may be made of polytetrafluoroethylene, or may be a belt made of fibre glass or woven metal strands which is coated with fluorinated propylene or ethylene resin. The casing is heated by burners 12.
Patent GB-1441736-A (GB)
Title: Method of and apparatus for refining crude cadmium
IPC: C22B17/06
Filed: 1974-10-25
Abstract: 1441736 Refining cadmium PREUSSAG A G METALL 25 Oct 1974 [13 April 1974] 46308/74 Heading C7D Crude cadmium is continuously refined by evaporation in a vacuum and passing the vapour through a reflex condenser to remove the higher boiling point impurities prior to condensing and collecting the purified Cd. The apparatus used comprises an inverted  U-shaped steel vacuum chamber 20, with a first and second legs formed by an inclined transition portion 34. In the first e.g., an evaporator portion 22 with a heating jacket 28 leads to a reflex condenser 30 containing a helical baffle 56 and surrounded by a temperature adjustable jacket 32. The outlet of the reflex condenser 30 connects with transition portion 34 which is connected to a condenser 36 in the second leg. A temperature adjustable jacket 38 surrounds condenser 36. A vacuum tube 42, connected to a pump, extends to just above the outlet end of the second leg and has the largest possible diameter to permit a minimum annular space 50 between the tube 42 and the wall of chamber 20 to give the maximum condensing surface. The free end of the second leg feeds via pipe 44 into a heated receiver 46. The crude liquid Cd input to the first leg is from a heated vessel 10 through tube 12, a further tube 16 leading from the first leg to a heated distillation residue container 14, the heights of tubes 12 and 16 being arranged such that the residue cannot feed back into the input tube. The materials in vessels 10, 14 and 46 act as barometric locks. In operation, the pressure and temperatures are adjusted and crude Cd is sucked into evaporator 22 via tube 12. The evaporated vapour passes into the baffled reflex condenser where impurities and some Cd condense and flow back counter current to the ascending vapour, this further purifying the gas. The distillation residue is discharged into receiver 14. The remaining gas passes through the transition portion 34 into condenser 36 in the second leg where it is condensed and collected in vessel 46.
Patent GB-1144352-A (GB)
Title: Improvements in or relating to bulb holders
Inventor: WEBBER ALFRED DISRAELI
IPC: H01R33/22
Filed: 1965-11-03
Abstract: 1,144,352. Lampholders. PIFCO Ltd. 16 Sept., 1966 [3 Nov., 1965], No. 46498/65. Heading H2E. A bulbholder comprises a threaded electrically conductive casing 1 forming the outer contact for the bulb, a centre contact 4 electrically insulated from the casing by an insulating washer 7, a compression spring 9 between the washer and the base of the casing, and an insulated lead 6 passing through a hole 8 in the base of the casing through the spring and through the insulating washer to the centre contact. The centre contact may comprise a blob of solder or a brass disc. A second insulating washer may be disposed between the spring and the base of the casing. A casing with a hole to accommodate the lead wires may be provided.
Patent GB-1279644-A (GB)
Title: Sealant composition
Inventor: SOMMER HARRY JUNIUS
IPC: C08L45/02
Filed: 1969-09-23
Abstract: 1279644 Bituminous composition SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 23 Sept 1969 [25 Sept 1968] 46744/69 Headings C3N and C3P A composition comprises: (a) 20-65% by weight of an oxidized asphalt, (b) 15-30% by weight of either (1) a block copolymer having the general configuration A-B-(-B-A) n  wherein each A is a thermoplastic polymer block of a mono-vinyl substituted aromatic hydrocarbon or a 1-alkene, B is an elastomeric polymer block of a conjugated diene or more than one 1-alkene, and n is an integer of between 1 and 5, or (2) a hydrogenated derivative of said block copolymer, (c) 10-40% by weight of a petroleum oil having a content of aromatic constituents of less than 50% by weight based on clay-gel analysis, and (d) 10-30% by weight of a coumarone-indene resin, a terpenephenolic resin or a mixture of these resins. The unoxidized asphalt has a viscosity of 150-350 poises at 60‹ C. and a penetration of 190-350 dmm. at 25‹ C., whilst the petroleum oil has a viscosity of 40-300 SSU at 99‹ C. Suitable block copolymers are polystyrene-polyisoprenepolystyrene, polystyrene-polybutadiene-polystyrene, polyethylene - (ethylene - propylene copolymer) - polyethylene, polypropylene- (ethylene-propylene copolymer)-polypropylene of which polystyrene-polybutadiene-polystyrene in which each polystyrene block has an average molecular weight between 10,000 and 50,000 and each polybutadiene block has an average molecular weight of between 35,000 and 150,000, the polystyrene blocks comprising 20-50% by weight of the weight of the block copolymer, is preferred. The thermoplastic blocks A may have average molecular weights of 7500-100,000 and the elastomeric block B may have an average molecular weight of 25,000-1,000,000. The proportion of the thermoplastic blocks A suitably is 10-70% by weight of the weight of the block copolymer. α-Methyl styrene may be employed as A whilst 1-alkenes used for A and B are ethylene, propylene, butene-1, hexene-1, and octene-1.
Patent GB-1109798-A (GB)
Title: Formation of metallic strip material
Inventor: STURGEON GEORGE MCHARDY
IPC: B22F3/18
Filed: 1965-11-05
Abstract: <PICT:1109798/C6-C7/1> In a method of rolling metal powder between compacting rolls, the width of the rolled strip is controlled by two spaced apart jets of fluid between which the powder is confined as it passes through the nip.  In the illustrated embodiment, metal powder from container 13 is passed through the nip of rolls 10 and 11 between two jets of compressed air which issue from tubes 16 mounted one either side of container 13.  In an alternative embodiment, each tube 16 may be replaced by a plurality of smaller tubes.
Patent GB-1187527-A (GB)
Title: Mobile Loader
IPC: E02F3/28
Filed: 1968-10-04
Abstract: 1,187,527. Shovel loaders. SALZGITTER MASCHINEN A.G. 4 Oct., 1968 [26 Oct., 1967], No. 47104/68. Heading E1F. A shovel loader has a shovel 4 pivotally mounted at the free end of the outer part 9 of a vertically swingable telescopic boom Z pivoted on a self propelled chassis 4. The outer part 9 of the boom is moved axially of the rest of the boom by a ram 7 housed within the boom and is subjected to vibrations by a vibrator coupled to the ram. The cylinders of the ram and of the vibrator, preferably, are of integral construction.
Patent GB-1101427-A (GB)
Title: Thixotropic polymer dispersions
Inventor: BAKER ALAN STEWART
IPC: C09D5/04
Filed: 1963-12-02
Abstract: Thixotropic aqueous polymer dispersions comprise an aqueous dispersion of a film-forming polymer of ethylenically unsaturated monomers, a water-soluble hydroxyl group containing organic colloid and 0.1 to 3.0 weight per cent based on the film forming polymer of a water-soluble chelate of aluminium or zirconium. Specified polymers are polymers and copolymers of vinyl acetate, acrylic esters, methacrylic esters, styrene, acrylonitrile and butadiene. Specified colloids ar polyvinyl alcohol, and methyl, hydroxyethyl, sodium carboxymethyl or hydroxypropyl cellulose. The chelate may be a reaction product of diethanolamine or triethanolamine with zirconium tetrabutoxide or tetrapropoxide, or with aluminium tributoxide or tripropoxide.  The dispersions may also comprise pigments, extenders and fillers, and may be used in coating compositions.  Examples describe aqueous dispersions comprising (I) a vinyl acetate/2-ethylhexyl acrylate copolymer, hydroxyethyl cellulose, reaction product of zirconium tetra-n-butoxide and diethanolamine, sodium hexamethaphosphate, titanium dioxide, clay and whiting; (II) polyvinyl acetate, dibutyl phthalate, methyl cellulose, reaction product of aluminium tri-isopropoxide and triethanolamine, sodium hexametaphosphate, titanium dioxide, talc and whiting; and (III) a vinyl acetate copolymer, sodium carboxymethyl cellulose, reaction product of aluminium tri-isopropoxide and triethanolamine, titanium dioxide, barytes and whiting.
Patent GB-1517617-A (GB)
Title: Method of making a radome by moulding
IPC: B29C70/08
Filed: 1976-11-15
Abstract: 1517617 Radome ELTRO GmbH GES FUR STRAHLUNGSTECHNIK 15 Nov 1976 [22 Dec 1975] 47473/76 Heading B5A A radome 1 is produced in matched moulds (not shown) corresponding to the contour of the radome. In the female half a stocking 2 of woven glass fibre and of substantially the same shape as the radome is placed, and inside the stocking a tablet 3 is introduced comprising pre-impregnated short fibre lengths containing an epoxy resin. When the two halves of the mould are clamped together during heating the resin now liquefied spreads out over the inside surface of the stocking and with the fibres form an inside backing to the woven stocking. Some of the epoxy resin soaks through the stocking and forms a smooth external surface.
Patent GB-949298-A (GB)
Title: Improvements in extensible safety belts
IPC: B60R22/12
Filed: 1962-12-19
Abstract: 949,298. Safety belts. S. M. LINBLAD, and O. L. LINBLAD. Dec. 19, 1962 [Dec. 21, 1961], No. 47892/62. Heading A3V. Safety belts comprise extensible bands 1 which are connected at their ends with attachment members 2 by means of an end portion of the band which is passed through a slot 3 in the attachment member and placed against the adjacent portion of the band and attached thereto by means of sewing, those portions 4, 5 (not shown) which are sewn on to one another having a considerably smaller capability of elongation than the remaining portions of the bands.
Patent GB-1138986-A (GB)
Title: Electromagnetic device
Inventor: GNAU HANS
IPC: B41J9/36
Filed: 1967-10-23
Abstract: 1,138,986. Selective printing. INTERNATIONAL BUSINESS MACHINES CORP. 23 Oct., 1967 [4 Nov., 1966], No. 48062/67. Heading B6F. [Also in Division H1]  Hammer mechanisms.-In a high speed print-out mechanism comprising a type element 3 mounted on a leaf spring 4, a hammer armature 8 is released from electro-magnets 9A and 9B thereby throwing type element 3 and ink ribbon 7 against the paper 2. For attracting the armature the electromagnets are actuated in sequence. The hammer 8 is made of magnetic material e.g. NiBe, or incorporates magnetic strips. The pole face 13 of the yoke 14 is intersected with grooves 21 to obtain high magnetic induction. A "pay-off" winding (not shown) may be incorporated on the yoke to overcome remanence in the armature. In another embodiment (Fig. 3, not shown), a winding is provided on each core of the yoke. An alternative embodiment (Fig. 4, not shown), has a yoke having a series of holes therein, each hole having inserted therein an electromagnet with a pole-face (50) resting on the surface of the yoke. The mechanism may also be applied to data processing punches, teleprinters and hydraulic and pneumatic control gear. The width of the hammers 8 is greater than the span between type elements 3 e.g. four spans.
Patent GB-1499976-A (GB)
Title: Hearing aids
IPC: H04R25/00
Filed: 1973-10-17
Abstract: 1499976 Hearing aid circuits J R J RUTHERFORD 16 Jan 1975 [17 Oct 1973] 48301/73 Heading H4J A hearing aid comprises a microphone 5 (Fig. 1) connected to a plurality of parallel connected band-pass filters 4 having respective variable attenuators 3 which can be preset and locked so that the resultant signal response is adjusted to the needs of the user. The resultant signals are applied to the input of an amplifier 2 having a user operated volume control. The amplifier output is applied to a receiver 1. Microcircuitry is preferably used and the bandpass filters, together with their respective variable attenuators, and the amplifier are of module form for ease of servicing or replacement. The microphone, the bandpass filters together with their variable attenuators, and the amplifier are in a common housing which also contains a battery space. The receiver may be in the housing or in a separate earpiece, and is connected by leads to the amplifier output.
Patent GB-1216326-A (GB)
Title: Improvements in or relating to etching processes
Inventor: STACEY PETER
IPC: C23F1/04
Filed: 1967-10-24
Abstract: 1,216,326. Etching. P. STACEY. 8 Oct., 1968 [24 Oct., 1967], No. 48346/67. Heading B6J. An etching process for forming an aperture in a metal plate (e.g. copper, brass, berylliumcopper or phosphor-bronze) includes the steps of coating both sides of the plate with photoresist material and inserting it between two translucent sheets (photographic films) having the aperture portions recorded thereon, the second sheet being formed with the aperture recording by mounting it in contact with the first sheet already so formed, exposing the second sheet through the first and developing it while still in contact. The aperture images on both sheets may be opaque, in which case after the plate inserted between the sheets is exposed and developed to remove the resist in the non- image areas, the latter are plated with a metal (e.g. gold, nickel or nickel-tin) which is unaffected by the etchant (e.g. ferric chloride), the resist removed from the image areas, and the plate etched from both sides. Where one image is opaque and one transparent, the plating step is preformed on the first side, and on the second side the image area is temporarily protected with a varnish, after removal of which etching is performed from the second side only. In every case, if negative instead of positive photo-resist is used, the opposite process is used with an opaque or transparent image to produce the same effect.
Patent GB-1486217-A (GB)
Title: Display system
Inventor: BATES ROGER D
IPC: G09G5/42
Filed: 1974-11-12
Abstract: 1486217 Cathode-ray tube displays XEROX CORP 12 Nov 1974 [23 Nov 1973] 48964/74 Heading H4T A character display system includes a display device 1 and a character generator 10 controlled by a computer 12, the character generator 10 including a first memory for storing characterrepresentative binary information, a second memory for storing instructions and processing circuitry for producing character-representative video signals, the processing circuitry including shift registers (92, Fig. 5, not shown) for processing the odd and even bits of the signals fed thereto separately and simultaneously. The resulting signals may be fed to a composer (124) which produces four outputs, representing the high intensity odd and even bits and the low intensity odd and even bits respectively which are fed to two shift registers (116, 118) which provide respective high and low intensity video signals. The display device 1 is associated with a keyboard and an input device 3 such as a digital pointer for positioning a cursor on the display, and receives as input the output of a video mixer 14 which may provide at its output the output of character generator 10 or the output of an external video source such as a television camera 16, or an overlayed or partitioned display from the outputs of the generator 10 and camera 16, as determined by the information supplied to the character generator 10. The character generator 10 may provide for the display of two cursors, for the shifting of the displayed characters and for the display of characters having widths and/or heights twice the normal dimensions, as determined by the stored instructions. The intensities of the characters may be controlled, the characters may be caused to blank and overlayed characters, such as accents or underlining, may be produced. The computer 12 may provide for the use of different fonts of characters.